<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<script src="../../dist/vue.js"></script>
<body>
    <div id="demo">
        <h1>初始化流程</h1>
        <p>{{obj.foo}}</p>
    </div>
</body>
<script>
    // render > template > el
    const app = new Vue ({
        el: '#demo',
        data: { obj : { foo: 'foo'} }
    })
    console.log(app.$options.render)
</script>
</html>